Pentax SFXn upper cover/focus lock problem


Link Posted 04/01/2004 - 23:19
My SFXn has problem with its focus lock. The focus lock does not work properly some time and the shuttter fires at wrong timing. The focusing is correct. I think the contact points of switch for the focusing motor is somewhat dirty and the switch does not engage properly at the focus lock position of shutter button. If I can remove the top cover I might be able to clean the contact points. Does someone have any suggestions?
I can find 6 screws. There are 2 screws each under the neck strap fittings and 2 more at the bottom corners of finder window. Are there more screws I have to remove? Please give me some suggestions. Thanks.
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